CN103363670A - Air energy water heater and control method and device for same - Google Patents
Air energy water heater and control method and device for same Download PDFInfo
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- CN103363670A CN103363670A CN2012100942600A CN201210094260A CN103363670A CN 103363670 A CN103363670 A CN 103363670A CN 2012100942600 A CN2012100942600 A CN 2012100942600A CN 201210094260 A CN201210094260 A CN 201210094260A CN 103363670 A CN103363670 A CN 103363670A
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Abstract
The invention provides an air energy water heater and a control method and device for the same. The control method comprises obtaining historical time data of utilization of hot water in the air energy water heater by users; determining starting time of the air energy water heater according to the historical time data; controlling the air energy water heater to be started to operate according to the determined starting time. By means of the air energy water heater and the control method and device for the same, the air energy water heater can be controlled to be started to operate according to user own water consumption habits, so that hot water can be provided as user required, frequent heating is not required, and energy-saving control is effectively achieved.
Description
Technical field
The present invention relates to field of water heaters, in particular to a kind of air-source water heater and control method and device.
Background technology
Air-source water heater is to utilize heat pump principle to realize the product of heating domestic water, and the electric heater that its Energy Efficiency Ratio is traditional exceeds more than 3 times, is a kind of water heater product of novel efficient, energy-saving and environmental protection.
At present, air-source water heater adopts following two kinds of control modes:
Mode one: air-source water heater starts operation automatically according to the temperature of water in the water heater, and water heater starts operation automatically when water temperature is lower than default temperature;
Mode two: air-source water heater started operation according to water time and the temperature actuated operation of water that the user sets at water before the time, guaranteed the coolant-temperature gage of using of water time.
Aforesaid way one need not the user and sets start-up time, but by the mode that the frequent starting air-source water heater is incubated, has caused energy waste.Aforesaid way two only started operation at water before the time, but needed the user to set the water time and use coolant-temperature gage, and user's experience sense is poor, and is intelligent low.
For the large problem of correlation technique Air energy water heater energy consumption, effective solution is proposed not yet at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of air-source water heater and control method and device, to solve the large problem of air-source water heater energy consumption.
To achieve these goals, according to an aspect of the present invention, provide a kind of control method of air-source water heater.
Control method according to air-source water heater of the present invention comprises: obtain the historical time data that the user uses hot water in the air-source water heater; Determine the start-up time of air-source water heater according to the historical time data; And the control air-source water heater is according to starting operation the start-up time of determining.
Further, obtain the user and use the historical time data of air-source water heater to comprise: in time period Δ t, detect the water temperature of air-source water heater, wherein, formed by a plurality of time period Δ t in one day; Judge whether time period Δ t satisfies pre-conditioned; And record and satisfy the zero-time of pre-conditioned time period, to obtain the historical time data.
Further, pre-conditioned in time period Δ t, detect water temperature at the interior temperature drop of Preset Time section Δ t ' more than or equal to default changing value, Δ t＞Δ t '.
Further, record satisfies the zero-time of pre-conditioned time period and comprises to obtain the historical time data: record the zero-time that satisfies pre-conditioned each time period Δ t in a day, to obtain the historical time data.
Further, record satisfies the zero-time of pre-conditioned time period and comprises to obtain the historical time data: add up and satisfy pre-conditioned time period number in the similar time period, to obtain statistics number corresponding to similar time period, wherein, the similar time period comprises the identical time period of zero-time in many days; And record statistics number is more than or equal to the zero-time of the similar time period of default number, to obtain the historical time data.
Further, the week attribute of each day is identical in many days, wherein, the control air-source water heater comprises according to startup operation start-up time of determining: the control air-source water heater moves according to starting the start-up time of determining at first day, wherein, the week attribute of first day is identical with the week attribute of each day in many days.
Further, adopt following formula to determine start-up time: t
x=t
y-(μ
I+1+ a), and wherein, t
xBe the time value of start-up time, t
yBe the time value in the historical time data, a is corrected parameter, and i is the historical heating times of air-source water heater, i=0, and 1,2..., when i=0, μ
1=μ
Initially, when 1≤i≤50,
When i＞50,
Wherein, μ
InitiallySetting value when heating first for air-source water heater, t
iHeating duration for the i time heating of the history of air-source water heater.
Further, adopt following steps to determine start-up time: the target temperature t that obtains air-source water heater
SetWith 1 ℃ of required heating duration t of the every rising of water temperature in the air-source water heater
HeatingAdopt following formula to calculate target start time: t
Target=t
y-[(T
Set-T
s) * t
Heating* γ+β], wherein, t
TargetBe the time value of target start time, t
yBe the time value in the historical time data, T
wBe the water temperature of the air-source water heater that detected in the first sampling time, and the time value t in the first sampling time
SamplingLess than t
y, β and γ are corrected parameter; Work as t
Target≤ t
SamplingThe time, determine that be the first sampling time start-up time; And work as t
Target＞t
SamplingThe time, determine that be the target start time start-up time.
Further, obtain 1 ℃ of required heating duration t of the every rising of water temperature in the air-source water heater
HeatingComprise: after air-source water heater is opened operation the first Preset Time section, detect the first water temperature T of air-source water heater
1, and the beginning timing; Water temperature at air-source water heater reaches the second water temperature T
2The time, stop timing, wherein, the duration that timing obtains is t
TimingAnd adopt following formula to calculate 1 ℃ of required heating duration t of the every rising of water temperature in the air-source water heater
Heating:
Further, adopt following steps to determine corrected parameter γ: the environment temperature T that detects air-source water heater environment of living in the first sampling time
eDetermine to search environment temperature T in the table at default corrected parameter
eCorresponding heating duration limiting value, wherein, corrected parameter determines that table comprises the corresponding relation of environment temperature and heating duration limiting value; At heating duration t
HeatingDuring more than or equal to the heating duration limiting value that finds, γ=1; And at heating duration t
HeatingDuring less than the heating duration limiting value that finds, γ=1.5.
To achieve these goals, according to a further aspect in the invention, provide a kind of control device of air-source water heater.The control method that is used for realizing any one air-source water heater provided by the invention according to control device of the present invention.
To achieve these goals, according to a further aspect in the invention, provide a kind of control device of air-source water heater.Control device according to the present invention comprises: acquisition module is used for obtaining the historical time data that the user uses air-source water heater hot water; Determination module is for the start-up time of determining air-source water heater according to the historical time data; And control module, be used for the control air-source water heater according to starting operation the start-up time of determining.
Further, acquisition module comprises: detection sub-module, be used in time period Δ t, detecting the water temperature of air-source water heater, and wherein, formed by a plurality of time period Δ t in one day; Judge submodule, be used for judging whether time period Δ t satisfies pre-conditioned; And record sub module, be used for record and satisfy the zero-time of pre-conditioned time period, to obtain the historical time data.
Further, pre-conditioned in time period Δ t, detect water temperature at the interior temperature drop of Preset Time section Δ t ' more than or equal to default changing value, Δ t＞Δ t '.
Further, record sub module comprises: statistic unit, and be used for adding up the similar time period and satisfy pre-conditioned time period number, to obtain statistics number corresponding to similar time period, wherein, the similar time period comprises the identical time period of zero-time in many days; And second record cell, be used for record statistics number more than or equal to the zero-time of the similar time period of default number, to obtain the historical time data.
Further, the week attribute of each day is identical in many days, wherein, control module comprises: the control submodule, be used for the control air-source water heater and start operation at first day according to the start-up time of determining, wherein, the week attribute of first day is identical with the week attribute of each day in many days.
Further, determination module adopts following formula to determine start-up time: t
x=t
y-(μ
I+1+ a), and wherein, t
xBe the time value of start-up time, t
yBe the time value in the historical time data, a is corrected parameter, and i is the historical heating times of air-source water heater, i=0, and 1,2..., when i=0, μ
1=μ
Initially, when 1≤i≤50,
When i＞50,
Wherein, μ
InitiallySetting value when heating first for air-source water heater, t
iHeating duration for the i time heating of the history of air-source water heater.
Further, determination module comprises: obtain submodule, be used for obtaining the target temperature T of air-source water heater
SetWith 1 ℃ of required heating duration t of the every rising of water temperature in the air-source water heater
HeatingCalculating sub module is used for adopting following formula to calculate target start time: t
Target=t
y-[(T
Set-T
w) * t
Heating* γ+β], wherein, t
TargetBe the time value of target start time, t
yBe the time value in the historical time data, T
wBe the water temperature of the air-source water heater that detected in the first sampling time, and the time value t in the first sampling time
SamplingLess than t
y, β and γ are corrected parameter; First determines submodule, is used for working as t
Target≤ t
SamplingThe time, determine that be the first sampling time start-up time; And second determine submodule, is used for working as t
Target＞t
SamplingThe time, determine that be the target start time start-up time.
To achieve these goals, according to a further aspect in the invention, provide a kind of air-source water heater.Air-source water heater according to the present invention comprises the control device of any one air-source water heater provided by the invention.
By the present invention, adopt the control method of the air-source water heater that may further comprise the steps: obtain the historical time data that the user uses air-source water heater; Determine the start-up time of air-source water heater according to the historical time data; And the control air-source water heater is according to starting operation the start-up time of determining, use the historical record data of water heater by the user, can start operation according to user's self water habits control air-source water heater, thereby can provide hot water by user's request, need not frequent heating, solve the large problem of air-source water heater energy consumption, effectively realized Energy Saving Control.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the block diagram according to the control device of the air-source water heater of the embodiment of the invention;
Fig. 2 is the flow chart according to the control method of the air-source water heater of first embodiment of the invention; And
Fig. 3 is the flow chart according to the control method of the air-source water heater of second embodiment of the invention.
The specific embodiment
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
At first, the embodiment of the invention provides a kind of air-source water heater.This air-source water heater comprises the control device that the embodiment of the invention provides, this control device starts operation automatically according to user's self water habits control air-source water heater, thereby can provide hot water by user's request, need not frequent heating, effectively realize Energy Saving Control.Wherein, can obtain user's self water habits with the historical time data of hot water in the air-source water heater by obtaining the user, the historical time data at this place referred to that before the current time user uses the temporal information of water heater hot-water.
Below control device provided by the invention (that is, the control device of air-source water heater) is introduced:
Fig. 1 is the block diagram according to the control device of the air-source water heater of the embodiment of the invention, and as shown in Figure 1, this control device comprises: acquisition module 20, determination module 40 and control module 60.
In this embodiment, determine start-up time of water heater according to the user with the historical time data of hot water in the air-source water heater, and automatically start operation according to controlling water heater the start-up time of determining.Because for most of user, the user of upper and lower class especially on schedule, the time of using water heater every day is rule relatively, determine the start-up time of water heater according to user's self water habits, both met consumers' demand, need not again frequent heating, effectively realized Energy Saving Control.Simultaneously, the control device that adopts this embodiment to provide, only need just can determine by obtaining the historical time data start-up time of water heater every day, need not user's operation, so that air-source water heater is more intelligent and hommization.
When the user uses hot water in a large number, also namely when air-source water heater is outwards exported hot water in a large number, the water temperature of water heater can reduce gradually, variation along with environment temperature, the water temperature of water heater also can reduce naturally, but, to compare with the situation that rear a kind of water temperature reduces, the amplitude that front a kind of water temperature reduces is larger.Therefore, the temperature drop of the water temperature by detecting water heater can judge that whether the user uses hot water a large amount of, and then obtain the historical time data that the user uses air-source water heater.Preferably, acquisition module 20 comprises: detection sub-module, judgement submodule and record sub module.
Wherein, be divided into a plurality of time periods with one day, the duration of each time period is Δ t, and detection sub-module is used for detecting the air-source water heater water temperature within each time period.Alternatively, the duration of each time period Δ t is one hour, is divided into 0:00～1:00 in one day; 1:00～2:00; 2:00～3:00......22:00～23:00; 23:00～0:00, within each time period, take 1min as the time interval, detects the water temperature of a water heater at totally 24 time periods every 1min.Alternatively, middle part at water-heater water tank arranges bottom temperature-sensitive bag in the position on the lower side, and bottom temperature-sensitive bag detects the water temperature of water heater, and detection sub-module reads bottom temperature-sensitive bag data, for guaranteeing that bottom temperature-sensitive bag detects the accuracy of water temperature, guaranteeing has the 45L-55L water yield below the temperature-sensitive bag approximately; Also top temperature-sensitive bag can be set on the top of water-heater water tank, top temperature-sensitive bag detects the water temperature of water heater, and detection sub-module reads top temperature-sensitive bag data.
Judge that submodule is used for judging whether each time period satisfy pre-conditioned, wherein, the pre-conditioned of this place is set to: in time period Δ t, detect water temperature at the interior temperature drop of Preset Time section Δ t ' more than or equal to default changing value, wherein, Δ t＞Δ t '.Preferably, pre-conditioned is first pre-conditioned, wherein, the first pre-conditioned being set in time period Δ t, bottom temperature-sensitive bag detects the temperature drop of water temperature in 15min more than or equal to 10 ℃; Perhaps, pre-conditioned is second pre-conditioned, wherein, the second pre-conditioned being set in time period Δ t, top temperature-sensitive bag detects the temperature drop of water temperature in 10min more than or equal to 5 ℃.
Record sub module is used for record and satisfies the zero-time of pre-conditioned time period, and to obtain the historical time data, for example, this time period of 22:00～23:00 satisfies pre-conditioned, and then record sub module record 22:00 is as the historical time data.Wherein, when water heater is provided with top temperature-sensitive bag and bottom temperature-sensitive bag simultaneously, if sometime section satisfy first pre-conditioned and/. or second is pre-conditioned, and then this time period is and satisfies the pre-conditioned time period.When water heater only is provided with a temperature-sensitive bag, judge that pre-conditioned in the submodule is first pre-conditioned.
In the preferred embodiment, the temperature drop of the water temperature by detecting water heater judges that whether the user is at a large amount of hot water that use, the time of water temperature when within a short period of time, temperature drop was larger of record water heater, as the historical time data, this mode of obtaining the historical time data is simple, and the data of obtaining are accurate, thereby can access accurately start-up time, guarantee that water heater started in the appropriate time, satisfied user's comfortableness requirement.
Further preferably, record sub module comprises the first record cell, is used for record and satisfies the zero-time of each pre-conditioned time period in one day, to obtain the historical time data.The historical time data that adopt the first record cell to obtain only derive from user's water temporal information of the previous day, and every day new data more.Historical time data required in the preferred embodiment are few, and required memory space is less.
Further preferably, record sub module comprises statistic unit and the second record cell.Wherein, statistic unit is used for adding up the similar time period and satisfies pre-conditioned time period number, and to obtain statistics number corresponding to similar time period, the similar time period at this place comprises the identical time period of zero-time in many days; The second record cell is for the zero-time of record statistics number more than or equal to the similar time period of default number, to obtain the historical time data.
For example, the temporal information of water heater was used in the source that the historical time data are set in front 10 days for the user, to be divided into 24 time periods (as indicated above) every day, the similar time period refers to the identical time period of zero-time in 10 days, 7:00～8:00 such as every day in 10 days is the similar time period, 10:00～11:00 of every day also is the similar time period in 10 days, and each similar time period comprises 10 time periods altogether.The as if statistics unit counts on: satisfying pre-conditioned time period number in similar time period 7:00～8:00 is 6, satisfying pre-conditioned time period number in similar time period 10:00～11:00 is 2, then corresponding statistics number is 6 the similar time period, and the statistics number that similar time period 10:00～11:0 is corresponding is 2.Alternatively, will preset the zero-time 7:00 that number is made as the similar time period 7:00～8:00 of 5, the second recording unit records, to obtain the historical time data.
In the preferred embodiment, the historical time that the second record cell obtains is data from user's water temporal information a few days ago, and every day new data more.The preferred embodiment is incited somebody to action the water time of similar time period a few days ago and is laterally compared, and the zero-time of the time period that record water probability is larger is the historical time data, thus the maximized rule data of obtaining user's water habits.
Further preferably, the similar time period not only is the identical time period of zero-time in each day, and the week attribute of each day is identical, and the week attribute at this place is all Monday, the Tuesday of being all identical comprising ... be all Sunday.For example, in each Monday zero-time as the time period of 7:00 as the similar time period, then obtain the historical time data and all derive from the water temporal information of user on Monday, control module 60 comprises the control submodule, and this control submodule control air-source water heater moved according to starting the start-up time of determining on each Monday.In like manner, according to week attribute the historical time data are divided into seven groups, determination module 40 can be determined seven groups of start-up times, thus control submodule control air-source water heater Monday to Sunday according to starting operation corresponding start-up time.
In the preferred embodiment, can control air-source water heater moves according to starting different start-up times with nonworkdays on weekdays, the water habits that can more meet the user maximizedly satisfies the user to the comfortableness requirement of water heater, so that water heater is more intelligent.
Preferably, determination module 40 adopts following formula to determine start-up time:
t
x＝t
y-(μ
i+1+a)
Wherein, t
xBe the time value of start-up time, t
yBe the random time value in the historical time data, a is corrected parameter, and i is the historical heating times of air-source water heater, i=0, and 1,2..., when i=0, μ
1=μ
Initially, μ
InitiallyBe preferably 5 when 1≤i≤50,
When i＞50,
Wherein, μ
InitiallySetting value when heating first for air-source water heater, t
iHeating duration for the i time heating of the history of air-source water heater.
Determine that by this preference, make water temperature in water heater can user water before reach higher temperature in advance in the time that the user uses water heater definite start-up time, satisfies user's comfortableness requirement this start-up time according to the heating performance of water heater.
Preferably, for maximized saving energy consumption, determine the start-up time of water heater according to above-mentioned arbitrary embodiment, control module 60 is before the control water heater starts operation, detect first current water temperature, when current water temperature did not satisfy preset temperature, the control water heater started operation, does not start when water temperature satisfies preset temperature.
Preferably, determination module is determined t by following manner
In advance, wherein, determination module comprises: obtain submodule, calculating sub module, first definite submodule and second definite submodule.
Wherein, obtain the target temperature T that submodule obtains air-source water heater
SetWith 1 ℃ of required heating duration t of the every rising of water temperature in the air-source water heater
HeatingThe target temperature at this place can be the temperature that arranges according to the human body characteristics, and this temperature is pre-stored in the water heater as target temperature, also can be the design temperature that receives user's input.The heating duration at this place is relevant with the performance of water heater itself, preferably, obtains in the following ways heating duration t
Heating: after air-source water heater is opened operation the first Preset Time section at every turn, detect the first water temperature T of air-source water heater
1, and the beginning timing, this is located the first Preset Time section and is preferably 30min; Water temperature at air-source water heater reaches the second water temperature T
2The time, stop timing, wherein, the duration that timing obtains is t
TimingCalculate 1 ℃ of required heating duration of the every rising of water temperature in the air-source water heater
Heat 1 ℃ of required heating duration of the every rising of water temperature when moving thereby obtain water heater at every turn, alternatively, obtain submodule and obtain the last 1 ℃ of required heating duration of the every rising of water temperature when moving that heats.
Preferably, employing is repeatedly obtained the mode of averaging and is obtained the heating duration.Move the heating duration t that obtains with nearest 5 heating
Heating 1-t
Heating 5Mean value be heating duration t
Heating, that is:
If during the heating number of run deficiency of air-source water heater 5 times, long data when then utilizing default initial value to supply the heating that lacks, default initial value is chosen as 450s.
Before the time that each time data is corresponding in the historical time data, with the water temperature that the default time interval is detected in real time, sampled air can water heater, for example, comprise time data 9:00 in certain day the historical time data, water temperature that then can water heater with default time interval sampled air before the 9:00 of this day.After sampling water temperature at every turn, calculating sub module calculates the target start time, if the current time (also being the sampling time) has met or exceeded the target start time of calculating, then first definite submodule determines that be the current time start-up time, also be that control module is controlled air-source water heater startup operation immediately, if the current time does not also reach the target start time of calculating, then second definite submodule determines that be the target start time start-up time.Because the current time is gone back miss the mark start-up time, continue to detect water temperature and obtain new water temperature, calculating sub module recomputates the target start time, determines start-up time by first definite submodule and second definite submodule, until the control module water heater starts operation.
Take any sampling time---the first sampling time was example, was T in this time detecting to the water temperature of air-source water heater
w, calculating sub module adopts following formula to calculate the target start time:
t
Target=t
y-[(T
Set-T
w) * t
Heating* γ+β]
Wherein, t
TargetBe the time value of target start time, t
yBe the time value in the historical time data, T
wBe the water temperature of the air-source water heater that detected in the first sampling time, and the time value t in the first sampling time
SamplingLess than t
y, β and γ are corrected parameter.
Wherein, corrected parameter γ can adopt following method to determine: when the water temperature of each detection air-source water heater, water heater detects the environment temperature T of air-source water heater environment of living in simultaneously
e, detect an environment temperature T at each sampling time point
e, and determine corrected parameter γ one time according to the environment temperature that detects and heating duration, so that calculating sub module is calculated pre-set time.
Equally take the first sampling time as example, detect the environment temperature T of air-source water heater environment of living in
e, then determine to search environment temperature T in the table at default corrected parameter
eCorresponding heating duration limiting value, wherein, corrected parameter determines that table comprises the corresponding relation of environment temperature and heating duration limiting value, at heating duration t
HeatingDuring more than or equal to the heating duration limiting value that finds, γ=1, in heating duration t heating during less than the heating duration limiting value that finds, γ=1.5.
Preferably, corrected parameter determines that table is as follows:
At the environment temperature T that detects air-source water heater environment of living in
eAfter, search environment temperature T
eIf the temperature range at place, and then heating duration limiting value δ corresponding to definite environment temperature are t
Heating〉=δ, then γ=1; If t
Heating＜δ, then γ=1.5.
At last, introduce the control method of the air-source water heater that this specific embodiment provides.
Fig. 2 is the flow chart according to the control method of the air-source water heater of first embodiment of the invention, and as shown in Figure 2, the method comprises that following step S102 is to step S106.
Step S102: obtain the historical time data that the user uses hot water in the air-source water heater, this step can realize by the acquisition module 20 in embodiment illustrated in fig. 1.
The historical time data at this place referred to that before the current time user uses the temporal information of water heater hot-water.Alternatively, by the effluent switch state of sensor detection water heater, when detecting switch opens, read time and the storage of clock module; Alternatively, detect water heater temperature's variation by sensor, when the water heater temperature reduces when very fast, time and the storage of reading clock module are by the data acquisition historical time data in the read storage device.The historical time data at this place can for the previous day the user use the temporal information of water heater, also can use the generalized time information of water heater for user for the previous period.
Preferably, step S102 comprises that following step S1022 is to step S1026:
Step S1022: in time period Δ t, detect the water temperature of described air-source water heater, wherein, formed by a plurality of time period Δ t in one day, for example will be divided into 0:00～1:00 in one day; 1:00～2:00; 2:00～3:00......22:00～23:00; 23:00～0:00, within each time period, take 1min as the time interval, detects the water temperature of a water heater at totally 24 time periods every 1min.Alternatively, middle part at water-heater water tank arranges bottom temperature-sensitive bag in the position on the lower side, and bottom temperature-sensitive bag detects the water temperature of water heater, and this step is by reading bottom temperature-sensitive bag Data Detection water temperature, for guaranteeing that bottom temperature-sensitive bag detects the accuracy of water temperature, guaranteeing has the 45L-55L water yield below the temperature-sensitive bag approximately; Also top temperature-sensitive bag can be set on the top of water-heater water tank, top temperature-sensitive bag detects the water temperature of water heater, by reading top temperature-sensitive bag Data Detection water temperature.
Step S1024: it is pre-conditioned to judge whether time period Δ t satisfies, and wherein, the pre-conditioned of this place is set to: in time period Δ t, detect water temperature at the interior temperature drop of Preset Time section Δ t ' more than or equal to default changing value, wherein, Δ t＞Δ t '.Preferably, pre-conditioned is first pre-conditioned, wherein, the first pre-conditioned being set in time period Δ t, bottom temperature-sensitive bag detects the temperature drop of water temperature in 15min more than or equal to 10 ℃; Perhaps, pre-conditioned is second pre-conditioned, wherein, the second pre-conditioned being set in time period Δ t, top temperature-sensitive bag detects the temperature drop of water temperature in 10min more than or equal to 5 ℃.
Step S1026: record satisfies the zero-time of pre-conditioned time period Δ t, to obtain the historical time data.For example, this time period of 22:00～23:00 satisfies pre-conditioned, then records 22:00 as the historical time data.Wherein, when water heater is provided with top temperature-sensitive bag and bottom temperature-sensitive bag simultaneously, if sometime section satisfy first pre-conditioned and/. or second is pre-conditioned, and then this time period is and satisfies the pre-conditioned time period.When water heater only was provided with a temperature-sensitive bag, pre-conditioned among step S1024 and the S1026 was first pre-conditioned.
In the preferred embodiment, the temperature drop of the water temperature by detecting water heater judges that whether the user is at a large amount of hot water that use, the time of water temperature when within a short period of time, temperature drop was larger of record water heater, as the historical time data, this mode of obtaining the historical time data is simple, and the data of obtaining are accurate, thereby can access accurately start-up time, guarantee that water heater started in the appropriate time, satisfied user's comfortableness requirement.
Further preferably, step S1026 comprises: record the zero-time that satisfies each pre-conditioned time period in a day, to obtain the historical time data.The historical time data that adopt the preferred embodiment to obtain only derive from user's water temporal information of the previous day, and every day new data more.Historical time data required in the preferred embodiment are few, and required memory space is less.
Further preferably, step S1026 comprises: add up and satisfy pre-conditioned time period number in the similar time period, to obtain statistics number corresponding to similar time period, the similar time period at this place comprises the identical time period of zero-time in many days; Record statistics number is more than or equal to the zero-time of the similar time period of default number, to obtain the historical time data.
For example, the temporal information of water heater was used in the source that the historical time data are set in front 10 days for the user, to be divided into 24 time periods every day, the similar time period refers to the identical time period of zero-time in 10 days, 7:00～8:00 such as every day in 10 days is the similar time period, 10:00～11:00 of every day also is the similar time period in 10 days, and each similar time period comprises 10 time periods altogether.The as if statistics unit counts on: satisfying pre-conditioned time period number in similar time period 7:00～8:00 is 6, satisfying pre-conditioned time period number in similar time period 10:00～11:00 is 2, then corresponding statistics number is 6 the similar time period, and the statistics number that similar time period 10:00～11:00 is corresponding is 2.Alternatively, will preset the zero-time 7:00 that number is made as the similar time period 7:00～8:00 of 5, the second recording unit records, to obtain the historical time data.
In the preferred embodiment, the historical time that obtains is data from user's water temporal information a few days ago, and every day new data more.The preferred embodiment is incited somebody to action the water time of similar time period a few days ago and is laterally compared, and the zero-time of the time period that record water probability is larger is the historical time data, thus the maximized rule data of obtaining user's water habits.
Step S104: determine start-up time of air-source water heater according to the historical time data, this step can realize by the determination module 40 in embodiment illustrated in fig. 1.
Alternatively, time in the historical time data directly is defined as start-up time, for example, the historical time data that get access to the previous day by step S102 comprise morning 7:00 and evening 10:00, then by step S104, the start-up time of determining air-source water heater today be morning 7:00 and evening 10:00.Preferably, the start-up time of determining air-source water heater today be morning 6:00 and evening 9:00, the start-up time of also namely determining is the time in the historical time data in advance, guarantees user's water requirement.
Step S106: the control air-source water heater is according to starting operation the start-up time of determining, this step can realize by the control module 60 in embodiment illustrated in fig. 1.
After determining start-up time, when the current time reached start-up time, the control water heater automatically started operation.
In this embodiment, determine start-up time of water heater according to the user with the historical time data of hot water in the air-source water heater, and automatically start operation according to controlling water heater the start-up time of determining.Because for most of user, the user of upper and lower class especially on schedule, the time of using water heater every day is rule relatively, determine the start-up time of water heater according to user's self water habits, both met consumers' demand, need not again frequent heating, effectively realized Energy Saving Control.Simultaneously, the control method that adopts this embodiment to provide, only need just can determine by obtaining the historical time data start-up time of water heater every day, need not user's operation, so that air-source water heater is more intelligent and hommization.
Preferably, the similar time period not only is the identical time period of zero-time in each day, and the week attribute of each day is identical, and the week attribute at this place is all Monday, the Tuesday of being all identical comprising ... be all Sunday.For example, in each Monday zero-time as the time period of 7:00 as the similar time period, then obtain the historical time data and all derive from the user in the water temporal information on Monday, by step S106, the control air-source water heater each Monday according to starting operation the start-up time of determining.In like manner, according to week attribute the historical time data are divided into seven groups, can determine seven groups of start-up times by step S104, thus the control air-source water heater Monday to Sunday according to starting corresponding start-up time operation.
In the preferred embodiment, can control air-source water heater moves according to starting different start-up times with nonworkdays on weekdays, the water habits that can more meet the user maximizedly satisfies the user to the comfortableness requirement of water heater, so that water heater is more intelligent.
Fig. 3 is the flow chart according to the control method of the air-source water heater of second embodiment of the invention, and as shown in Figure 3, the method comprises following step.
Step 1: record water temperature temperature drop.
Be divided into 24 time periods with one day, the duration of each time period is 1h, within each time period, take 1min as the interval, detects the water temperature of water heater.Alternatively, bottom temperature-sensitive bag is set the position on the lower side at the middle part of water-heater water tank, the temperature-sensitive bag detects the water temperature of water heater, reads temperature-sensitive bag data acquisition water temperature temperature drop.For guaranteeing that the temperature-sensitive bag detects the accuracy of water temperature, guaranteeing has the 45L-55L water yield below the temperature-sensitive bag approximately.
Step 2: judge according to decision condition.
Decision condition is as follows: in the section, detecting the temperature drop of water temperature in 15min more than or equal to 10 ℃ between at a time, think that then large water event has occured this time period, is 1 with this time segment identification; Otherwise, be 0 with this time segment identification.
Step 3: form the matrix list in the one-period.
The memory cycle of sampled data is Z=7x (wherein x=2,3,4,5) day, and the minimum data cycle is Z1=7 days, and the maximum data cycle is Z2=7x days.In each time period of every day within the cycle, record water temperature data variation speed, and judge according to decision condition, obtain the matrix list that sign corresponding to interior each time period of every day of one-period and each time period consists of.
Step 4: extract the identical list of week attribute.
According to the matrix list in the cycle, it is identical to extract weekly the week attribute, also is that (example: be all Monday, be all Tuesday, data by that analogy) generated 7 sub-data forms in corresponding several days.
Step 5: judge according to operation result.
The algorithm of computing is as follows: respectively the sign with the period in 7 sub-data forms is compared, if be recorded as the number 〉=x/2 of " 1 ", think that then large water event has occured this time period, this period is designated as 1, i.e. user's water in this period; If not, then this period is designated as 0.By the judgement of this mathematical algorithm, obtain 7 days weeks totally 7 new data lists.
Step 6: determine start-up time.
In 7 new data lists that obtain by step 5, inquiry is labeled as the time period of " 1 ", the zero-time t of the time period that inquires
yAfter, calculate t start-up time of water heater
x
Wherein, can determine start-up time by following dual mode.
Mode one: according to water heater historical heat time heating time of t1, t2, t3 ... ti (unit: h), adopt following formula calculative determination start-up time:
t
x＝t
y-(μ
i+1+a)
Wherein, a is corrected parameter, and i is the historical heating times of air-source water heater, i=0, and 1,2..., when i=0, μ
1=μ
Initially, μ
InitiallyBe preferably 5 when 1≤i≤50,
When i＞50,
Wherein, μ
InitiallySetting value when heating first for air-source water heater, t
iBe the heat time heating time of the i time heating of the history of air-source water heater.
Mode two, adopt following steps to determine start-up time:
Obtain the target temperature T of air-source water heater
SetWith 1 ℃ of required heating duration t of the every rising of water temperature in the air-source water heater
Heating
Wherein, the target temperature at this place can be the temperature that arranges according to the human body characteristics, and this temperature is pre-stored in the water heater as target temperature, also can be the design temperature that receives user's input.The heating duration at this place is relevant with the performance of water heater itself, preferably, obtains in the following ways heating duration t
Heating: after air-source water heater is opened operation the first Preset Time section at every turn, detect the first water temperature T of air-source water heater
1, and the beginning timing, this is located the first Preset Time section and is preferably 30min; Water temperature at air-source water heater reaches the second water temperature T
2The time, stop timing, wherein, the duration that timing obtains is t
TimingCalculate 1 ℃ of required heating duration of the every rising of water temperature in the air-source water heater
Heat 1 ℃ of required heating duration of the every rising of water temperature when moving thereby obtain water heater at every turn, alternatively, 1 ℃ of required heating duration of the every rising of water temperature when obtaining the last heating operation.Preferably, employing is repeatedly obtained the mode of averaging and is obtained the heating duration, above describes, and repeats no more herein.
The water temperature T of sampled air energy water heater
w, calculate the target start time.
Time value t when the target start time
TargetThe time value t that is less than or equal to the sampling time
SamplingThe time, determine that be the sampling time start-up time, as the time value t of target start time
TargetTime value t greater than the sampling time
SamplingThe time, determine that be the target start time start-up time.
Wherein, before the time that each time data is corresponding in the historical time data, detect in real time the water temperature of air-source water heater, for example, comprise time data 9:00 in certain day the historical time data, then before the 9:00 of this day, detect the water temperature of air-source water heater with the default time interval.After detecting water temperature at every turn, if be target start during the time start-up time of determining, continue to detect water temperature, and recomputate the target start time, until water heater starts operation.
Take any sampling time---the first sampling time was example, was T changing the water temperature of time detecting to air-source water heater
w, adopt following formula to calculate the target start time:
t
Target=t
y-[(T
Set-T
w) * t
Heating* γ+β]
Wherein, t
yBe the time value in the historical time data, the time value t in the first sampling time
SamplingLess than t
y, β and γ are corrected parameter, this parameter can be by detecting the environment temperature T of air-source water heater environment of living in
eAnd search corrected parameter and determine that table is definite, the existing description no longer repeated herein hereinbefore.
Step 7: according to controlling unit definite start-up time, also namely control air-source water heater and start operation.
Particularly, Monday to Sunday, determine start-up time according to step 6, the control air-source water heater is according to starting operation corresponding start-up time.
Need to prove, in the control method that this embodiment provides, also can be without step 4, direct execution in step 5.If without step 4, then the algorithm of the computing in the step 5 is as follows: segment data relatively if be recorded as the number 〉=Z/2 of " 1 ", thinks that then this time period, large water event occured in the whole matrix list time, this period is designated as 1, and namely the user needs water this time; If not, then this period is designated as 0.By the judgement of this mathematical algorithm, obtain a new data form.Then pass through step 6 in this new data form, inquiry is labeled as the time period of " 1 ", calculates t start-up time of water heater
xThereby, obtain start-up time.By step 7, the start-up time that all determine according to step 6 every day, the control air-source water heater starts operation at last.
In this embodiment, if the sampling period does not reach the maximum data cycle, sampled data is constantly accumulation; Reaching maximum data after the cycle, sampled data is constant the renewal, to store data reach one day every day, and removing record period first day data, with the doomsday data of one day new data as record period, real-time update user's usage data keeps synchronously with the up-to-date use habit of user.
The first method that adopts this embodiment to provide is controlled, and user's use habit is not yet added up formation, and water heater can be controlled according to the initial preset data of built-in storage.In addition, can enabled device be set at water heater, when this enabled device is effective, adopt this control method control water heater; When this enabled device was invalid, water heater is the data of continuous learning and recording user water still, until enabled device effectively after, realize control to air-source water heater with the user habit real time data of state-of-the-art record.
In this embodiment, when the sampling time does not reach 7 days, control according to initial preset data; When sampling time during at 7～14 days, the data of record were controlled by front 7 days (1 week); When sampling time during at 14～21 days, the data of record were controlled by front 14 days (2 week), by that analogy, when sampled data satisfies Z2 days, controlled by the data of maximum data periodic recording.
By this embodiment, utilize water temperature to change user's water habits is carried out fuzzy judgement, determine the start-up time of water heater, need not the frequent starting water heater, can solve energy consumption.And, distinguish different water habits from nonworkdays on working day, and can judge according to the unit self-ability the in advance heat time heating time of needs, realized more hommization and intelligentized control mode.
From above description, can find out that the present invention has realized following technique effect: determine both to meet consumers' demand start-up time of water heater with the historical time data of hot water in the air-source water heater according to the user, need not again frequent heating, effectively realized Energy Saving Control.Simultaneously, need not user's operation, make the more intelligent and hommization of air-source water heater.
Need to prove, can in the computer system such as one group of computer executable instructions, carry out in the step shown in the flow chart of accompanying drawing, and, although there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and be carried out by calculation element, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. the control method of an air-source water heater is characterized in that, comprising:
Obtain the historical time data that the user uses hot water in the air-source water heater;
Determine the start-up time of described air-source water heater according to described historical time data; And
Control described air-source water heater according to starting operation the start-up time of determining.
2. control method according to claim 1 is characterized in that, obtains the user and uses the historical time data of described air-source water heater to comprise:
In time period Δ t, detect the water temperature of described air-source water heater, wherein, formed by a plurality of time period Δ t in one day;
Judge whether described time period Δ t satisfies pre-conditioned; And
Record satisfies the zero-time of described pre-conditioned time period, to obtain described historical time data.
3. control method according to claim 2 is characterized in that, described pre-conditioned in described time period Δ t, detect water temperature at the interior temperature drop of Preset Time section Δ t ' more than or equal to default changing value, Δ t＞Δ t '.
4. control method according to claim 2 is characterized in that, the zero-time that record satisfies described pre-conditioned time period comprises to obtain described historical time data:
Record the zero-time that satisfies described pre-conditioned each time period Δ t in a day, to obtain described historical time data.
5. control method according to claim 2 is characterized in that, the zero-time that record satisfies described pre-conditioned time period comprises to obtain described historical time data:
Add up and satisfy described pre-conditioned time period number in the similar time period, to obtain statistics number corresponding to described similar time period, wherein, the described similar time period comprises the identical time period of zero-time in many days; And
Record described statistics number more than or equal to the zero-time of the similar time period of default number, to obtain described historical time data.
6. control method according to claim 5 is characterized in that, the week attribute of each day is identical in described many days, wherein, controls described air-source water heater and comprises according to starting operation the start-up time of determining:
Control described air-source water heater and start operation at first day according to the start-up time of determining, wherein, the week attribute of described first day is identical with the week attribute of each day in described many days.
7. each described control method in 6 according to claim 1 is characterized in that, adopts following formula to determine described start-up time:
t
x＝t
y-(μ
i+1+a)
Wherein, t
xBe the time value of described start-up time, t
yBe the time value in the described historical time data, a is corrected parameter, and i is the historical heating times of described air-source water heater, i=0, and 1,2..., when i=0, μ
1=μ
Initially, when 1≤i≤50,
When i＞50,
Wherein, μ
InitiallySetting value when heating first for described air-source water heater, t
iHeating duration for the i time heating of the history of described air-source water heater.
8. each described control method in 6 according to claim 1 is characterized in that, adopts following steps to determine described start-up time:
Obtain the target temperature T of described air-source water heater
SetWith 1 ℃ of required heating duration t of the every rising of water temperature in the described air-source water heater
Heating
Adopt following formula to calculate the target start time:
t
Target=t
y-[(T
Set-T
w) * t
Heating* γ+β]
Wherein, t
TargetBe the time value of described target start time, t
yBe the time value in the described historical time data, T
wBe the water temperature of the described air-source water heater that detected in the first sampling time, and the time value t in described the first sampling time
SamplingLess than t
y, β and γ are corrected parameter;
Work as t
Target≤ t
SamplingThe time, determine that be described the first sampling time described start-up time; And
Work as t
Target＞t
SamplingThe time, determine that be the described target start time described start-up time.
9. control method according to claim 8 is characterized in that, obtains 1 ℃ of required heating duration t of the every rising of water temperature in the described air-source water heater
HeatingComprise:
After described air-source water heater is opened operation the first Preset Time section, detect the first water temperature T of described air-source water heater
1, and the beginning timing;
Water temperature at described air-source water heater reaches the second water temperature T
2The time, stop timing, wherein, the duration that timing obtains is t
TimingAnd
Adopt following formula to calculate 1 ℃ of required heating duration t of the every rising of water temperature in the described air-source water heater
Heating:
10. control method according to claim 8 is characterized in that, adopts following steps to determine corrected parameter γ:
Detect the environment temperature T of described air-source water heater environment of living in described the first sampling time
e
Determine to search described environment temperature T in the table at default corrected parameter
eCorresponding heating duration limiting value, wherein, described corrected parameter determines that table comprises the corresponding relation of environment temperature and heating duration limiting value;
At described heating duration t
HeatingDuring more than or equal to the heating duration limiting value that finds, γ=1; And
At described heating duration t
HeatingDuring less than the described heating duration limiting value that finds, γ=1.5.
11. the control device of an air-source water heater is characterized in that, comprising:
Acquisition module is used for obtaining the historical time data that the user uses air-source water heater hot water;
Determination module is for the start-up time of determining described air-source water heater according to described historical time data; And
Control module is used for controlling described air-source water heater according to starting operation the start-up time of determining.
12. control device according to claim 11 is characterized in that, described acquisition module comprises:
Detection sub-module is used for detecting the water temperature of described air-source water heater in time period Δ t, wherein, be comprised of a plurality of time period Δ t in one day;
Judge submodule, be used for judging whether described time period Δ t satisfies pre-conditioned; And
Record sub module is used for the zero-time that record satisfies described pre-conditioned time period, to obtain described historical time data.
13. control device according to claim 12 is characterized in that, described pre-conditioned in described time period Δ t, detect water temperature at the interior temperature drop of Preset Time section Δ t ' more than or equal to default changing value, Δ t＞Δ t '.
14. control device according to claim 12 is characterized in that, described record sub module comprises:
Statistic unit is used for adding up the similar time period and satisfies described pre-conditioned time period number, and to obtain statistics number corresponding to described similar time period, wherein, the described similar time period comprises the identical time period of zero-time in many days; And
The second record cell is for recording the zero-time of described statistics number more than or equal to the similar time period of default number, to obtain described historical time data.
15. control device according to claim 14 is characterized in that, the week attribute of each day is identical in described many days, and wherein, described control module comprises:
The control submodule is used for controlling described air-source water heater and starts operation at first day according to the start-up time of determining, wherein, the week attribute of described first day is identical with the week attribute of each day in described many days.
16. each described control device in 15 is characterized in that according to claim 11, described determination module adopts following formula to determine described start-up time:
t
x＝t
y-(μ
i+1+a)
Wherein, t
xBe the time value of described start-up time, t
yBe the time value in the described historical time data, a is corrected parameter, and i is the historical heating times of described air-source water heater, i=0, and 1,2..., when i=0, μ
1=μ
Initially, when 1≤i≤50,
When i＞50,
Its
In, μ
InitiallySetting value when heating first for described air-source water heater, t
iHeating duration for the i time heating of the history of described air-source water heater.
17. each described control device in 15 according to claim 11 is characterized in that described determination module comprises:
Obtain submodule, be used for obtaining the target temperature T of described air-source water heater
SetWith 1 ℃ of required heating duration t of the every rising of water temperature in the described air-source water heater
Heating
Calculating sub module is used for adopting following formula to calculate the target start time:
t
Target=t
y-[(T
Set-T
w) * t
Heating* γ+β]
Wherein, t
TargetBe the time value of described target start time, t
yBe the time value in the described historical time data, T
wBe the water temperature of the described air-source water heater that detected in the first sampling time, and the time value t in described the first sampling time
SamplingLess than t
y, β and γ are corrected parameter;
First determines submodule, is used for working as t
Target≤ t
SamplingThe time, determine that be described the first sampling time described start-up time; And
Second determines submodule, is used for working as t
Target＞t
SamplingThe time, determine that be the described target start time described start-up time.
18. an air-source water heater is characterized in that, comprises the control device of each described air-source water heater in the claim 11 to 17.
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